Boiler.



PATENTED APR. 5, 1904.

H. W. WHITE.

BOILER.

APPLICATION FILED JULY 7, 190a.

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UNITED STATES Patented April 5, 1904.

PATENT OFFICE.

BOILER.

SPECIFICATION forming part of Letters Patent NO. 756,754, dated April 5,1904.

Application filed July 7, 1903. Serial No. 164,542. (No model.)

To all whom, it may concern.-

Be it known that I, HARRY WHITMORE l/VHITE, a citizen of the UnitedStates, and a resident of Youngstown, in the county of Mahoning andState of Ohio, have invented a new and Improved Boiler, of which thefollowing is a full, clear, and exact description.

My invention relates to boilers, and more particularly to a type ofboiler adapted for use in connection with waste gases from which it isdesired to extract the maximum amount of heat economically.

Reference is to be had to the accompanying drawings, forminga part ofthis specification, in which the figure shows a section of a boilerembodying my invention.

A tubular casing 1, of brickwork, is provided with metallic bands 2 andwith doorways 3, having doors 4 for closing the same, these doors beingprovided with handles 5. Aconical top 6 is mounted upon the brickworkand secured thereto by means of fastenings 7. A passage 8 is providedwith a door 9 and is disposed in alinement with the lower door 3 for thepurpose of allowing access to the lower portion of the fire-space inorder to facilitate the removal of ashes and cinders. An archway 10 andan annular portion 11 are provided for the masonry 13, which supportsthe head 14: of the boiler.

Mounted upon the masonry 13 are brackets 15, preferably of cast-iron,for'the purpose of forming an additional support for the boiler. Acylindrical section 16, of metal, is enlarged at its bottom, as shown. Anumber of large cylindrical sections 17 17 a 17 b 1'7 are connectedtogether by means of rivets 17 thus an opening 20.

Mounted upon the section 16 is a section 22, and mounted upon thissection 22 is a section 23, to which is rigidly connected a cap 24,

these parts constituting the inner shell of the boiler. Extendingradially from the inner shell to the outer shell are a number of shortflues 25. The sections 17 17 17 17 are secured rigidly together by meansof rivets 26 27. An inspirator-pipe is shown at 28 and a steampipe at29, the steam-pipe being connected with a union 30, mounted upon thehighest part of the steam-dome. The blazes and gases of combustion passthrough the space 31 up into the inner shell, thence proceed radiallythrough several flues 25, so as to pass upward around the outer shelland out through the conical top 6. The weight of the boiler resting uponthe annular head 14 tends to strengthen the same, whereas the brace-rods18 strengthen the head 19.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. In aboiler, the combination of inner and outershells, and a head connecting said shells together, said head having arotund portion free to rest upon a resisting-surface, thereby enablingthe plate of the boiler to strengthen said head. y

2. In a boiler, the combination of a firespace, a boiler-shell locatedthereover, a passageway leading to said fire-space for allowing theremoval of ashes therefrom, and a casing sur- Y rounding said fire-spaceand said boiler-shell, said casing being provided with a doorwaydisposed in alinement with said passage-way for the purpose of renderingsaid passage-way accessible from the outside of said casing.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CARI. C. SEEGER, FREDERICK ANDRES RAMsnR.

